> Hello,
>
> I've written a local_scan function for exim-4.61 in which I'm trying to
> test sender_address. The manual says:
>
> *uschar *sender_address*
>
> The envelope sender address. For bounce messages this is the empty
> string.
>
>
> local_scan.c:
>
> #define ISNULL(s) (s == NULL || *s == '\0')
>
> [snip]
>
> if(ISNULL(sender_address)) {
> smtp_printf("250 2.0.0 Message accepted\r\n");
> return(0);
> }
>
> When this code is executed:
>
> local_scan() function crashed with signal 11
I reread the smtp_printf() page which explains what's really going on.
Sorry for the noise.
Jack
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